Propelling-wheel for turn-tables.



PATENTED MAY 29; 1906 L: PZL. NG. PROPBLLING WHEEL P611 TURN TAB" APPLICATION FILED AUG. 11, 1905.

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PROPELLlNG-WHEEL FOR TURN-TABLES.

Qpecification of Letters Patent. Application filed August 11.1905. Berial No- 273,747.

Patented May 29, 1906.

1'0 tall whom it may conceiva- Be it known that I, JAMES L. PILLING, a

citizen of the United States, residing at Detroit, county of Wayne, tate of Michi an,- have invented certain new and useful nprovements in Propelling-Wheels for Turn- Tables;'and .I declare the following to be a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification. l

This invention relates to propelling-wheels for locomotive turntables. I I

It has for its object an improved trailing wheel adapted andintended to be used in connection with a driving mechanism for the propulsion of a turn-table around a track on which it travels.

In the drawings, Figure 1 is a side elevation of the trailing wheel and the motor connected with it and the trunnion-plate by which it is connected to the turn-table. Fig. 2 is a plan indicating the engagement between the wheel and the rail. Fig. 3 is a cross-section of the Wheel and rail, showing the groove in the wheeltire.

1 indicates the wheel, and 2 the rail of the turn-table track. The wheel is journaled in bearings 3, which are pivotally connected by pivot 4 to a trunnion-plate 5, by means of which the trailing wheel is bolted or other wise secured to the turn-table. On the pivoted frame 8 is the motor-engine 6, by means 3 5 I of which the trailing wheel 1s actuated and for the purpose of such actuation the trail ng wheel is provided with a gear 7, that meshes .with a gear on the shaft 8, driven by the engine. The motor may be of any well-known type and be driven by any proper motive The tire of the wheel 1 is deeply grooved with a triangular groove 9, that sits over the rail 2 and engages against the sides of the rail. Because of the curvature of the rail in the curved track used with turn-tables the groove engages the rail at three points, (indicated in Fig. 2 at a, b, and c,) and because of the triangular shape of the groove 9 the engagement is one which produces great trac-' tional force.

What I claim is In combination a frame'having pivoted connections for engagement with a turn-table and pivoted connections with a wheel, a

motor on said frame, a wheel provided with a i tread havin whereby sai curved track with a three-point bearing, suba V-shaped groove therein stantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.

JAMES L. FILLING.

Witnesses:

CHARLES F, BURTON, MAY E. KOTT.

wheel is adapted to engage a 

